com.googlecode.jsonschema2pojo.rules.MinLengthMaxLengthRule Maven / Gradle / Ivy

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/**
 * Copyright © 2010-2011 Nokia
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package com.googlecode.jsonschema2pojo.rules;

import javax.validation.constraints.Size;

import com.fasterxml.jackson.databind.JsonNode;
import com.googlecode.jsonschema2pojo.Schema;
import com.sun.codemodel.JAnnotationUse;
import com.sun.codemodel.JFieldVar;

public class MinLengthMaxLengthRule implements SchemaRule {
	
	private final RuleFactory ruleFactory;
	
	protected MinLengthMaxLengthRule(RuleFactory ruleFactory) {
		this.ruleFactory = ruleFactory;
	}
	
	@Override
    public JFieldVar apply(String nodeName, JsonNode node, JFieldVar field, Schema currentSchema) {
		
		if (ruleFactory.getGenerationConfig().isIncludeJsr303Annotations()
                && (node.has("minLength") || node.has("maxLength"))) {

            JAnnotationUse annotation = field.annotate(Size.class);

            if (node.has("minLength")) {
                annotation.param("min", node.get("minLength").asInt());
            }

            if (node.has("maxLength")) {
                annotation.param("max", node.get("maxLength").asInt());
            }
        }

        return field;
	}
	
}